Foot rail car heater



May 2, 19,33. 1 R HOLMES 1,906,377

FOOT RAIL CAR HEATER Filed DecfQ, 1951 2 sheets-sheet 1 w www May 2, 1933. J. R. HOLMES 1,906,377

FOOT RAIL GAR HEATER Filed Dec. 9, 1931 2 Sheets-Sheet 2 the cowl at 12,

Patented May 2, 1933 :srA'r-ns FOOT RAIL CAB ,HEATER Application fledecember 9, 1931. 'Serial `I\To'.r579,t 71.

This inventionrelates to `heating,devices for 1automotive vehicles .fandihas particular referenceitonthe rtype of heater which .uses thehot waterfo-"the circulating system of the engine. lxnithe'inventiongthe heater is formedwas alfootirest -at-the lrear Vseat and is swingably-mounted en pivots at its two ends as is customary for the foot rest. The hot water from the engine cooling system is delivered at one end of the heater and with drawn at the other end, the heater comprising a honeycomb structure with numerous passages and a large radiating surface so that the hot water in passing from one end to the other will deliver its heat from the radiating surfaces to the air in the vehicle.

The particular heating unit of the invention comprises two -honeycomb structures which are spaced from each other and enclosed in a metal protecting casing or cover.

On the drawings:

Figure l shows a sectional view through an automotive vehicle showing the heater applied.

Figure 2 is an of the heater.

Figure 3 is a plan view of the heater with parts broken away and shown in section and taken substantially on the line BB of F1gure 2.

Figure 4 is a section on the line 1l-4 of Figure 3. Y

Figure 5 is a section on the line 5-5 of Figure 3.

Figure 6 is a section on the line 6-6 of Figure 2.

Figure Figure 6.

Referring to the drawings, the numeral 2 indicates an automotive Vehicle as whole. The Vehicle has the engine 4 with the usual water circulating system 6 including a water pump 8. The dashboard is indicated at 10, the instrument panel at 14, `the toe board at 16, the floor board at 18, the front seat at 20, and rear seat at 22. These parts are conventional and per se form no part of the invention. D

The heating unit of the invention is indicated as a whole at 24 and is positioned in the enlarged detailed dde view 7 is a section on the line 7-7 of rear compartment ofithevehicle'l between the front .seat 120. and the rear seat V22. .Theheating ainittakes the hot-.water of thelengine circulati-ngsystem from-a pipe V26 anddelivers ittoA one Jend ofvthelheater an'd'returns :it

through -a pipe -28ifrom the otherend olfthe heater yto the :cooling system of the engine. Avualve :30, controlled by- 'a' l.link 32 `and -a buttoniBe Vat theinstrument panel, fis adapted to; .disconnectA or connectl the` water: through theiheater. l i Y vThe pipes 26 andf28 have suitableiwater tightv connections 36 at 4theirsends Ywhich are attachedto-fconnecting membersa38whiclrextend-l through l'.thei iooriboard 18. Thefconlnectionsare ,screwthreadech as indicate'dat 40, :and ahave the .nnte-'2 an d Washer 44 below thea floor board and.- the internally .f threaded elbow 4.6. above the ilioor; board. By tighten` ingthe elements 42@andt6,fa .rigidiand Water tight connection is obtained. Each` elbow 46 has'zthe dome portion 48 in which; there is formeda seat 50 which receives the flowfmem-i.

ber.' 552. rllhe; ,flow .member has the: .openings 54.- at opposite sides toallow the ywater-.to vpass from :the elbow :f1-6to the :interior of, .the flow member. rThe flow member 52 has-al tight lit inth eseatiOand istajpered, as show-n in Figure 6. A gasket 56 anda nut 58tightlyliold the flow member o-n its seat and formamvater tight. connection ,at one end. .'The flow. member.- 52 :and: .seat 50v'have a..re1atively large bearing surface iatrthe opposite ,side atnGU which formera water tightconnection.

:Each 'owbc'onnection .52 terminates in'an elbowv ".62 :which :hasza water tight yconnection' 64xlwth.; an ,inletpipei .L66 atl one :side `of the heater and with an outlet 68 at the other side ofethei heater. The inletnpipea66has1a pluralityv :of .openings 7-0. i at Ione side A'thereof to allow the .water .to :flow intoianinlet jacket 72-atzthe end of-tthehea-ter. The end of the inletpipe4 66.1isv closed .ibyfzrmeans of '1a plug 7 4 sin water tight relation. ,The jacket f7.2 surroundsthe inlet pipe, asshowniatfl, and is :secured thereto 1. `fin water tight; relation. The .outlet :pipe .68 is similarly!! constructed and :has #the :openings .70. at ione. side, ,1a. similanplug 741. and an. outletjaeket. "T -hefoutg let .jacket :is securedlaround the outlet Epipe-68 are spaced apart by any suitable means.

as indicated at 76. The inlet jacket 72 and outlet jacket 7 8 are secured in watertight relation to a honeycomb structure indicated as a whole at 80 and which extends the length of the heater 24 between the inlet and outlet passages. The honeycomb structure comprises the upper and lower sections 82 and 84 whiplh T e honeycomb structure is reticulated in Jform and causes the Vwater to pass from one end to the other in a zigzag passage so as to give a slow movement of water therethrough. The zigzag passage and honeycomb structure also affords a large radiating surface so that when the hot water passes through the heater, .the air surrounding it willA absorb the heat and heat the interior of the vehicle.

The honeycomb structure and inlet and outlet pipes are surrounded by a protecting jacket or cover 88. The jacket comprises the telescopic upper and lower parts 90 and 92, the two being secured together by means of the bolts and nuts 94. Bolts 96 are tapped into the plugs 74 at the inlet and outlet pipes and rigidly clamp the casing 88 to the inlet and outlet pipes to form a rigid structure. At the front portion where the inlet and outlet pipes emerge from the casing, the members 90 and 92 are slotted to accomodate the pipes. At its upper and lower portions where it Vextends over the honeycomb structure, the casing members 90 and 92 are ribbed or formed trellis like, as shown at 98 and 100, to allow for a radiation for the heat from the heating unit. The parts 98 are flat and join the ribs 101. f

The protecting jacket or casing 88 lacts as .a shield for the 'heater element and prevents damage thereto, thereby preventing leaks in the water circulating system.

The jacketor casing also takes the strain or foot pressure and transmits none to the heating element thereby'preventing damage to the heating element.

I claim:

1. In aheater i'or an automotive-vehicle, a water inlet at one end of the heater, a water outlet at the other end, an upper and a lower honeycomb structure between said inlet and outlet through which the water flows, and ay protecting casing surrounding saidinlet and outlet andhoneycomb structure.

2. In a means for heating an automotive vehicle having a floor, a heater secured to and positioned above the loor, a water inlet at one end of the heater, a water outlet at the other end, an upper and a lowerlhoneycomb structure between said inlet and outlet throughwliich `the water flows, and a twopart interfitting protecting casing over said inlet and outlet'and honeycomb'structure.

3l In al means for heating an automotive vehicle having a floor, a heater secured to and positioned above the Hoor, a water inlet at one end of the heater, a water outlet at the other end, an upper and a lower spaced honeycomb structure between said inlet and outlet through which the water flows, and a protecting casing surrounding said inlet and outlet and honeycomb structure.

4. In a heater for an automotive vehicle, a water inlet at one end of the heater, a water outlet at the other end, means passing through the floor of the vehicle and delivering water to the inlet and passing Water from the outlet, a journalled connection between said means and the inlet and outlet permitting the heater to swing from a position to be used as afoot rest to a position adjacent the vehicle seat, an upper and lower spaced honeycomb structure between the inlet and outlet and through which the water flows, and a protecting casing surrounding said honeycomb structure.

In testimony whereof I afHX my signature.

JOHN R. HGLMES.

lofi 

